Base | Representation |
---|---|
bin | 1000010110010… |
… | …10011101010000 |
3 | 11212210011100021 |
4 | 10023022131100 |
5 | 120412112110 |
6 | 10541033224 |
7 | 1510201330 |
oct | 413123520 |
9 | 155704307 |
10 | 70035280 |
11 | 365955a7 |
12 | 1b555814 |
13 | 116818c3 |
14 | 94310c0 |
15 | 62362da |
hex | 42ca750 |
70035280 has 40 divisors (see below), whose sum is σ = 186095232. Its totient is φ = 24011904.
The previous prime is 70035269. The next prime is 70035281. The reversal of 70035280 is 8253007.
It is a tau number, because it is divible by the number of its divisors (40).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70035281) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61972 + ... + 63091.
Almost surely, 270035280 is an apocalyptic number.
70035280 is a gapful number since it is divisible by the number (70) formed by its first and last digit.
It is an amenable number.
70035280 is an abundant number, since it is smaller than the sum of its proper divisors (116059952).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70035280 is a wasteful number, since it uses less digits than its factorization.
70035280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 125083 (or 125077 counting only the distinct ones).
The product of its (nonzero) digits is 1680, while the sum is 25.
The square root of 70035280 is about 8368.7083830183. The cubic root of 70035280 is about 412.1977559452.
Adding to 70035280 its reverse (8253007), we get a palindrome (78288287).
The spelling of 70035280 in words is "seventy million, thirty-five thousand, two hundred eighty".
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